SKF 8660 Power Steering Valve Cover Seal - Outer

SKF 8660 Power Steering Valve Cover Seal

The SKF 8660 power steering valve cover seal is built for steering gear applications that need a precise sealing surface and stable fit. With nitrile sealing material and dimensions matched to the shaft and housing, it helps maintain fluid control in classic GM, Jeep, Buick, Oldsmobile, Pontiac, and Cadillac steering systems.

Key Features

• Part number 8660 for power steering valve cover sealing applications
• Nitrile sealing surface type for fluid resistance in steering service
• Width: 0.250 in.
• Outside diameter: 1.379 in.
• Shaft diameter: 0.875 in.
• Engineered by SKF, a long-established seal manufacturer with extensive sealing design experience

Product Details

SKF 8660 is a power steering valve cover seal designed around specific dimensional requirements for steering gear assemblies. SKF has a long history in seal engineering, and this part reflects that focus with premium material selection and application-specific construction. It is used in steering systems where the seal must retain power steering fluid while helping keep contaminants out of the valve area.

Compatible vehicle coverage includes long-running applications such as Chevrolet P30 and P20, GMC P3500 and P2500, Jeep CJ5, CJ7, Scrambler, and Wrangler, plus many classic Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models. For example, it fits 1975-1993 Chevrolet P30, 1979-1993 GMC P3500, and 1971-1983 Jeep CJ5. This part number 8660 also cross-references 1021510M1 for the same application.

What It Helps Address

• Power steering fluid leakage at the valve cover area
• Contamination entering the steering valve assembly
• Seal wear from age, heat, and fluid exposure
• Loss of sealing integrity in older steering gear systems
• Service issues on classic Chevrolet, GMC, Jeep, Pontiac, Buick, Oldsmobile, and Cadillac steering components

Installation Notes and Tips

Verify shaft diameter, outside diameter, and steering gear design before installation. This seal is listed for multiple steering applications, including 800 gear first-design units with a 4-bolt side cover and other noted configurations, so match the vehicle and steering box details carefully. Clean the sealing surfaces thoroughly and inspect the valve cover and shaft for wear or scoring before assembly.

Quality Assurance

SKF manufactures seals to specific designs using premium materials and controlled production standards. The brand’s sealing expertise is backed by more than a century of road-proven application experience, with a focus on long service life and dependable sealing performance.